(function($){
	var defaultConfig = {
		radius : 120,
		dtr : Math.PI/180,
		size:250,
		tmpl:_.template('<a href="<?=href?>" alt="<?=text?>" class="<?=className?>"><?=text?></a>')
	};
	
	$.fn.move3d = function(config){
		$(this).each(function(){
			return new Move3d(this,config);
		});
	}
	
	function Move3d(dom,config){
		this.option={
		};
		
	}
	
	//公用方法
	$.extend(Move3d.prototype,{
				update:function()
				{
					var a;
					var b;
					
					if(active)
					{
						a = (-Math.min( Math.max( -mouseY, -size ), size ) / radius ) * tspeed;
						b = (Math.min( Math.max( -mouseX, -size ), size ) / radius ) * tspeed;
					}
					else
					{
						a = lasta * 0.98;
						b = lastb * 0.98;
					}
					
					lasta=a;
					lastb=b;
					
					if(Math.abs(a)<=0.01 && Math.abs(b)<=0.01)
					{
						return;
					}
					
					var c=0;
					sineCosine(a,b,c);
					for(var j=0;j<mcList.length;j++)
					{
						var rx1=mcList[j].cx;
						var ry1=mcList[j].cy*ca+mcList[j].cz*(-sa);
						var rz1=mcList[j].cy*sa+mcList[j].cz*ca;
						
						var rx2=rx1*cb+rz1*sb;
						var ry2=ry1;
						var rz2=rx1*(-sb)+rz1*cb;
						
						var rx3=rx2*cc+ry2*(-sc);
						var ry3=rx2*sc+ry2*cc;
						var rz3=rz2;
						
						mcList[j].cx=rx3;
						mcList[j].cy=ry3;
						mcList[j].cz=rz3;
						
						per=d/(d+rz3);
						
						mcList[j].x=(howElliptical*rx3*per)-(howElliptical*2);
						mcList[j].y=ry3*per;
						mcList[j].scale=per;
						mcList[j].alpha=per;
						
						mcList[j].alpha=(mcList[j].alpha-0.6)*(10/6);
					}
					
					doPosition();
					depthSort();
				},
				depthSort:function()
				{
					var i=0;
					var aTmp=[];
					
					for(i=0;i<aA.length;i++)
					{
						aTmp.push(aA[i]);
					}
					
					aTmp.sort
					(
						function (vItem1, vItem2)
						{
							if(vItem1.cz>vItem2.cz)
							{
								return -1;
							}
							else if(vItem1.cz<vItem2.cz)
							{
								return 1;
							}
							else
							{
								return 0;
							}
						}
					);
					
					for(i=0;i<aTmp.length;i++)
					{
						aTmp[i].style.zIndex=i;
					}
				},
				positionAll:function()
				{
					var phi=0;
					var theta=0;
					var max=mcList.length;
					var i=0;
					
					var aTmp=[];
					var oFragment=document.createDocumentFragment();
					
					//随机排序
					for(i=0;i<aA.length;i++)
					{
						aTmp.push(aA[i]);
					}
					
					aTmp.sort
					(
						function ()
						{
							return Math.random()<0.5?1:-1;
						}
					);
					
					for(i=0;i<aTmp.length;i++)
					{
						oFragment.appendChild(aTmp[i]);
					}
					
					oDiv.appendChild(oFragment);
					
					for( var i=1; i<max+1; i++){
						if( distr )
						{
							phi = Math.acos(-1+(2*i-1)/max);
							theta = Math.sqrt(max*Math.PI)*phi;
						}
						else
						{
							phi = Math.random()*(Math.PI);
							theta = Math.random()*(2*Math.PI);
						}
						//坐标变换
						mcList[i-1].cx = radius * Math.cos(theta)*Math.sin(phi);
						mcList[i-1].cy = radius * Math.sin(theta)*Math.sin(phi);
						mcList[i-1].cz = radius * Math.cos(phi);
						
						aA[i-1].style.left=mcList[i-1].cx+oDiv.offsetWidth/2-mcList[i-1].offsetWidth/2+'px';
						aA[i-1].style.top=mcList[i-1].cy+oDiv.offsetHeight/2-mcList[i-1].offsetHeight/2+'px';
					}
				},
				doPosition:function()
				{
					var l=oDiv.offsetWidth/2;
					var t=oDiv.offsetHeight/2;
					for(var i=0;i<mcList.length;i++)
					{
						aA[i].style.left=mcList[i].cx+l-mcList[i].offsetWidth/2+'px';
						aA[i].style.top=mcList[i].cy+t-mcList[i].offsetHeight/2+'px';
						
						aA[i].style.fontSize=Math.ceil(12*mcList[i].scale/2)+8+'px';
						
						aA[i].style.filter="alpha(opacity="+100*mcList[i].alpha+")";
						aA[i].style.opacity=mcList[i].alpha;
					}
				},
				sineCosine:function( a, b, c)
				{
					sa = Math.sin(a * dtr);
					ca = Math.cos(a * dtr);
					sb = Math.sin(b * dtr);
					cb = Math.cos(b * dtr);
					sc = Math.sin(c * dtr);
					cc = Math.cos(c * dtr);
				}
	});
	
}(jQuery));

var radius = 120;
var dtr = Math.PI/180;
var d=300;

var mcList = [];
var active = false;
var lasta = 1;
var lastb = 1;
var distr = true;
var tspeed=10;
var size=250;

var mouseX=0;
var mouseY=0;

var howElliptical=1;

var aA=null;
var oDiv=null;

window.onload=function ()
{
	var i=0;
	var oTag=null;
	
	oDiv=document.getElementById('div1');
	
	aA=oDiv.getElementsByTagName('a');
	
	for(i=0;i<aA.length;i++)
	{
		oTag={};
		
		oTag.offsetWidth=aA[i].offsetWidth;
		oTag.offsetHeight=aA[i].offsetHeight;
		
		mcList.push(oTag);
	}
	
	sineCosine( 0,0,0 );
	
	positionAll();
	
	oDiv.onmouseover=function ()
	{
		active=true;
	};
	
	oDiv.onmouseout=function ()
	{
		active=false;
	};
	
	oDiv.onmousemove=function (ev)
	{
		var oEvent=window.event || ev;
		
		mouseX=oEvent.clientX-(oDiv.offsetLeft+oDiv.offsetWidth/2);
		mouseY=oEvent.clientY-(oDiv.offsetTop+oDiv.offsetHeight/2);
		
		mouseX/=5;
		mouseY/=5;
	};
	
	setInterval(update, 30);
};

